Music-leaf turner.



No. 68l,332. Patented Aug. 27, l90l. w. v. nonnow.

IUSIC LEAF TURNER.

(App ication flhd my 23. 190(1) (No Model.)

Allonzeys Wifnesses Yul mm! Int 00. moroutnoq wuuunm. n. c.

UNITED STATES PATENT OFFICE.

\VILLIAM V. MORROIV, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE- HALF TO PIO TAMINELLI, OF SANTA MARIA, CALIFORNIA.

MUSIC-LEAF TURNER.

S'iEC-IFIGATION forming part of Letters Patent No. 681,332, dated August 27, 1901.

Application filed May 23, 1900,

T ctZZ whom it may concern.-

Be it known that. 1, WILLIAM V. Monnow, a citizen of the United States, residing at Los Angeles, county of Los Angeles, State of California, have invented new and useful Improvements in Music-Leaf Turners, of which the following is a specification.

My invention relates to devices for holding and automatically turning from right to left IO leaf-music; and the object thereof is to provide a device of simple construction to which leaf-music can be attached before sitting down to the instrument and which can be operated by the foot to automatically turn one leaf of music at a time from right to left until all are turned. I accomplish these objects by the mechanism described herein and illustrated in the accompanying drawings, forming a part hereof, in which-- Figure 1 is a front View of a piano, partly broken away, with my music -leaf turner thereon holding leaf-music. Fig. 2 is an end View of the same on a reduced scale, and Fig;

3 is a detail View of the leaf-turning mech- 2 5 anism.

In the drawings, A is the piano, and B is the leaf-turning device, composed of an outer casing for the protection of the leaf-turning mechanism, the upper part of which is re so moved and the base 0 partly broken away in Fig. 3, and the leaf-turning mechanism hereinafter described.

In the casing are mounted electromagnets D, parts being broken away. To the arma- 5 ture D is rigidly affixed detent E, adapted to catch and hold arm F from turning until the detent is released. Arm F is rigidly affixed to post- G, rotatably mounted in and projecting through the base 0, around which post is coiled spring H, adapted upon the release of detent E to rotate post G and turn music leaf-turning bar I, (partly broken away,) which is rigidly affixed to the projecting end of post G, which bar affords means 5 for the attachment of the leaf-holding mechanism, preferably a clip T, adapted to slide on the bar. To base C is pivotally attached detent J to hold arm K, which is rigidly affixed to post L, from turning until the detent is released. Detent J is provided with a tripping-trigger M, pivotall y attached thereto,

Serial No. 17,754. (No model.)

the top of which is springpressed toward magnets D and the bottom of which is adapted to be pushed by arm F toward armature D and hold the top thereof from engagement with arm E, affixed to detent E, as long as arm F is held by detent E. Post L is provided with a spiral spring N, adapted to cause its rotation when detent J is released, and projects through the bottom 0, to the projecting end of which is rigidly aiiixed music leaf -turning bar 0. Magnets D are connected with battery P and circuit maker and breaker R and said maker with the battery by wires Sin the usual manner. Circuit maker and breaker R is attachcd to the instrument or to the stand for holding the music in such manner that it can be operated by the foot. As many clips T as there are leaves of music to be turned (two only being shown) are fastened to the tops of theleaves of the music, and these clips are then slipped upon the music-turning bars I and O, which are turned to the right and held by the detents in that position, (other detents, posts,andbarsbeingprovidedwhen morethan two leaves are to be turned.) Wires S pass through eyebolt U, aflixed to the back of the instrument, and are fastened against movement therethrough by thumb-nut V, so as to adjust the height of-the leaf-turner B to bring the music in proper position on the instrument. hen it is desired to have a leaf of music turned, circuit-maker R is pressed with the foot to establish the circuit which energizes magnets D. They in turn attract and draw armature D, carrying detent E upward, and thereby releases arm F. Spring H then causes the rotation of post G, which turns bar I from right to left, thereby carrying the leaf of music and exposing to View the other side 0 thereof. As soon as the leaf is turned the pressure on circuit-maker R is released, which thereupon breaks the circuit. The change in position of arm F permits the top of trigger M being thrown far enough toward magnets D that when the magnets are again energized and draw the armature upward arm E contacts with the trigger M and releases detent J from arm K and spring N causes the rotation of post I, carrying bar 0, and the second leaf of music is turned. As many spring-operated posts carrying music-turning bars and having detents to successively release the same can be constructed in one instrument as may be required to turn all the leaves of any piece of music. When through with turner B, it may be swung back of the instrument.

Having described my invention, what I claim is 1. A music-leaf-turning mechanism, comprising a casing; electromagnets, and an armature adapted to be actuated thereby,mounted in said casing; a detent affixed to said armature, adapted to catch and hold the arm of a leaf-turning post rotatively mounted, partly within and partly without said casing; a leaf-turning post said post having an arm adapted to be held by said detent against rotation till released, and a bar exterior .the casing, adapted to afford attachment thereto for the leaf-holding mechanism; means to attach leaf-music to said bar; a spring affixed to the leaf-turning post, adapted to cause the rotation thereof from right to left; Wires connecting said electromagnets to a battery and also to a circuit maker and breaker, and the wires connecting battery to the circuit-maker;

a battery, and a circuit maker and breaker.

2. The herein-described music-leaf-turning device, comprising casing C; electromagnets D and armature D mounted therein; detent E affixed to armature D; post G, rotatably mounted in casing (J, and projecting therethrough, having arm F and bar I aflixed thereto; spring H adapted to cause the rotation of post G from right to left; means to attach music to' bar 1; wires S adapted to connect magnet D with battery P and also to circuit maker and breaker R, and also to connect battery P with breaker R; and battery P and circuit maker and breaker R.

3. A music-leaf-turning mechanism, comprising a casing; electromagnets, and an armature adapted to be actuated thereby,

mounted in said casing; a detent afiixed to said armature, adapted to catch and hold the arm of a leaf-turning post rotatively mounted, partly Within and partly without said casing; a leaf-turning post said post having an arm adapted to be held by said detent against rotation till released, and a bar exterior the easing, adapted to afiord attachment thereto for the leaf-holding mechanism; means to attach leaf-music to said bar; a spring affixed to the leaf-turning post, adapted to cause the rotation thereof from right to left; a second detent pivotally attached to the casing; a tripping-trigger pivotallyattached to said second detent, projecting above and below the same; a spring affixed to said trigger, adapted, normally, to throw the top thereof toward the magnets, an arm attached to the first detent, adapted to engage with the tripping-trigger and raise the second detent on the rise of the armature after the firstleaf of music has been turned; a second spring-operated post having an arm adapted to be engaged by the second detent and hold the post against rotation till released; and a bar exterior the case,-

adapted to afford attachment thereto for the 1eaf-holding mechanism; means to attach leafmusic to said bar; a spring affixed tosaid second post, adapted to cause the rotation thereof from right to left; wires connecting WILLIAM v. MoRRow.

Witnesses:

G. E. HARPHAM, M. MoGINNIs. 

